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Poly(ethylene oxide)-poly(ethylene imine) block copolymers as templates and catalysts for the in situ formation of monodisperse silica nanospheres

Kind, Lucy and Shkilnyy, Andriy and Schlaad, Helmut and Meier, Wolfgang and Taubert, Andreas. (2010) Poly(ethylene oxide)-poly(ethylene imine) block copolymers as templates and catalysts for the in situ formation of monodisperse silica nanospheres. Colloid and polymer science, Vol. 288, H. 16-17. pp. 1645-1650.

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Official URL: http://edoc.unibas.ch/dok/A5841678

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Abstract

Block copolymers based on poly(ethylene oxide) (PEO) and poly(ethylene imine) (PEI) are efficient catalysts/templates for the formation of uniform silica nanoparticles. Addn. of tetraethylorthosilicate to a soln. of PEO-PEI or PEI-PEO-PEI block copolymers results in the formation of silica particles with a diam. of ca. 30 nm and narrow size distribution. The particles pptd. with the diblock copolymers can be redispersed in water after isolation as individual nanoparticles. Evidently, block copolymers based on PEO and PEI serve as excellent templates for the biomimetic and "soft" synthesis of silica nanoparticles. [on SciFinder(R)]
Faculties and Departments:05 Faculty of Science > Departement Chemie
05 Faculty of Science > Departement Chemie > Chemie > Makromolekulare Chemie (Meier)
UniBasel Contributors:Meier, Wolfgang P.
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Springer
ISSN:0303-402X
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:14 Sep 2012 07:19
Deposited On:14 Sep 2012 06:58

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